Pre-MTA

Which one of the following is a connectionless protocol?

• UDP
• TCP
• OSI
• ISO

Which port is reserved for use of the SMTP protocol?

• 21
• 23
• 25
• 27

An IP address contains how many bits?

• 8
• 16
• 32
• 64

Which of the following can be an Ethernet physical address?

• 01:02:01:2C:4B
• 07:01:02:01:2C:4B:2C
• 07:01:02:01:2C:4B

Which one of the following functionalities is provided by IP?

• dialogs
• bits
• programming
• addressing

Why was the OSI model developed?

• a. Manufacturers disliked the TCP/IP protocol suite
• The rate of data transfer was increasing exponentially.c. Standards were needed to allow any two systems to communicate..d. None of these
• Standards were needed to allow any two systems to communicate
• None of these

Routers operate at which layer of the OSI model?

• physical
• network
• transport
• data link

........... is a process-to-process protocol that adds only port addresses, checksum error control, and length information to the data from upper layer.

• A. TCP
• B. UDP
• C. IP
• D. ARP

UDP packets are called .......

• A. user datagrams
• B. segments
• C. frames
• D. packets

LAN stands for

• Local Area Network
• Local And Network
• Live Area Network